Re: DMA not permitted since 2.6.14
David LIMA wrote:
>
> I'm running Debian SID with linux-image-2.6-686, since few days i'm
> facing DMA problems after upgrading kernel to 2.6.14 (from stock).
> Hdparm reports "operation not permitted" when I try do activate DMA.
>
> I have read http://lists.debian.org/debian-user/2005/11/msg00410.html
> and recompile my kernel but still same issue.
[...]
> /dev/hda:
> UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 udma6
>
> /dev/hdc:
> UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 udma6
> * signifies the current active mode
>
> Has someone any clue about this problem that slow down my system ?
Actually, no clue what you are complaining about: both drives run with UDMA5,
there not much more what you can enable with respect to DMA transfers.
HS
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